Nifty - Manage projects, work, and communications in one place.
Flow - Stop managing projects from your inbox.
Trello - Infinitely flexible. Incredibly easy to use. Great mobile apps. It's free. Trello keeps track of everything, from the big picture to the minute details.
Workflow86 - All-in-one platform for automating complex workflows and business operations
Asana - Asana project management is an effort to re-imagine how we work together, through modern productivity software. Fast and versatile, Asana helps individuals and groups get more done.
Zluri - SaaS Management and Identity Governance Platform for IT Teams